questions on Mask slivers and solder bridge on layout design

[n_raghavan07]

layout sliver

Few questions on Mask slivers and solder bridge on layout design.
1. What is the basic difference between above two?
2. What are the causes of above two in terms of PCB manufacturability?
3. Is there any specific guideline for above two?
4. How above two forms on PCB?
5. How to determine above two values on design?

Regards,
N.Raghavan

 

[chakravarthy80pcb]

solder bridge

Hi NR,

Copper Slivers are areas in the copper that are so narrow that they will likely flake off. Sowe should remove those potential slivers on the electrical and composite layers in your design before the board is manufactured.

Solder Bridge is the minimum gap covered by the mask b/w the pins

I suggest you if you have CAM 350 ,you will find all answers for the above in that .

hope this will help you..

cheers ,chakri

 

[cyberrat]

solder mask slither

A mask sliver is a small sliver of mask that, because it is so small can flip over covering a pad etc during manufacture.

I have experienced this many years ago & since then designed to have thicker/bigger slithers so that it did not happen.
AFAIK the dimensions need sorting with your FAB.